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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 1 #include "jni/timer.h" | 5 #include "jni/timer.h" |
| 2 #include "bin/log.h" | |
| 3 | 6 |
| 4 Timer::Timer() : elapsed_(0.0f), last_time_(0.0) { | 7 Timer::Timer() : elapsed_(0.0f), last_time_(0.0) { |
| 5 } | 8 } |
| 6 | 9 |
| 7 void Timer::reset() { | 10 void Timer::reset() { |
| 8 elapsed_ = 0.0f; | 11 elapsed_ = 0.0f; |
| 9 last_time_ = now(); | 12 last_time_ = now(); |
| 10 } | 13 } |
| 11 | 14 |
| 12 void Timer::update() { | 15 void Timer::update() { |
| 13 double current = now(); | 16 double current = now(); |
| 14 elapsed_ = (current - last_time_); | 17 elapsed_ = (current - last_time_); |
| 15 last_time_ = current; | 18 last_time_ = current; |
| 16 } | 19 } |
| 17 | 20 |
| 18 double Timer::now() { | 21 double Timer::now() { |
| 19 timespec timeval; | 22 timespec timeval; |
| 20 clock_gettime(CLOCK_MONOTONIC, &timeval); | 23 clock_gettime(CLOCK_MONOTONIC, &timeval); |
| 21 return timeval.tv_sec + (timeval.tv_nsec * 1.0e-9); | 24 return timeval.tv_sec + (timeval.tv_nsec * 1.0e-9); |
| 22 } | 25 } |
| 23 | 26 |
| 24 float Timer::elapsed() { | 27 float Timer::elapsed() { |
| 25 return elapsed_; | 28 return elapsed_; |
| 26 } | 29 } |
| 27 | |
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